MBBCNasdaqSavings Institutions, Not Federally CharteredFiscal year ends June 30
Marathon Bancorp, Inc. /MD/
Financials through Q4 FY2026, quarter ended Jun 30, 2026Last filing: 10-K on Sep 16, 2026
$14.65+0.15 (+1.03%)
Close on Oct 19, 2026
- Market cap
- $40.08M
- P/E (TTM)
- 22.2
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
24.6%
1M of 3M shares
Institutional holders
12
4 new, 1 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
27 buys · 0 sales
Net bought $146.46K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Marathon Bank Employee Stock Ownership Plan Trust | 254,445 | 8.66% | 13G (passive) | Jun 30, 2025 |
| Marathon Bank 401(k) Plan Trust | 193,211 | 6.57% | 13G (passive) | Jun 30, 2025 |
| AllianceBernstein L.P. | 153,238 | 5.20% | 13G (passive) | Dec 31, 2025 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of MBBC | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Raffles Associates LP | 215,328 | 7.15% | $3.29M | +107,664 | 1.44% |
| Alliancebernstein L.P. | 153,238 | 5.09% | $2.07M | – | 0.00% |
| Maltese Capital Management LLC | 145,298 | 4.83% | $2.22M | +198 | 0.40% |
| Vanguard Capital Management LLC | 76,027 | 2.53% | $1.16M | −571 | 0.00% |
| Minerva Advisors LLC | 55,750 | 1.85% | $851.86K | −3,226 | 0.54% |
| KLCM Advisors, Inc. | 34,320 | 1.14% | $524.41K | – | 0.04% |
| Stilwell Value LLC | 20,000 | 0.66% | $305.60K | – | 0.18% |
| Vanguard Fiduciary Trust Co | 11,514 | 0.38% | $175.93K | −4,920 | 0.00% |
| Citadel Advisors LLC | 10,984 | 0.36% | $167.84K | New | 0.00% |
| Geode Capital Management, LLC | 10,871 | 0.36% | $166.11K | New | 0.00% |
| BlackRock, Inc. | 8,357 | 0.28% | $127.70K | New | 0.00% |
| UBS Group AG | 89 | 0.00% | $1.36K | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 12 | 1M | 24.6% | 4 / 2 | 3 / 1 | 0M | 0M |
| Q1 2026 | 9 | 1M | 20.4% | 2 / 0 | 1 / 1 | 0M | 0M |
| Q4 2025 | 9 | 1M | 20.4% | 1 / 4 | 1 / 2 | 0M | 0M |
| Q3 2025 | 10 | 1M | 17.1% | 0 / 5 | 3 / 1 | 0M | 0M |
| Q2 2025 | 11 | 0M | 16.3% | 11 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of MBBC | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 55,400 | 1.84% | $846.51K | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 18,940 | 0.63% | $289.40K | 0.00% | Jun 30, 2026 |
| iShares Micro-Cap ETF | 7,897 | 0.26% | $120.67K | 0.01% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 6,243 | 0.21% | $83.91K | 0.00% | May 31, 2026 |
| Fidelity Series Total Market Index Fund | 1,959 | 0.07% | $26.33K | 0.00% | May 31, 2026 |
| Vanguard Balanced Index Fund | 1,687 | 0.06% | $25.78K | 0.00% | Jun 30, 2026 |
| 1290 VT Micro Cap Portfolio | 460 | 0.02% | $7.03K | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Nicholas W. Zillges | President and CEO, Director | 112,129 | 3.73% | Jun 30, 2026 |
| Nora Spatz | EVP and CAO | 74,045 | 2.46% | Sep 18, 2026 |
| Joy Selting-Buchberger | SVP and CFO | 28,725 | 0.95% | Jun 30, 2026 |
| Terry Cornish | SVP and CCO | 35,711 | 1.19% | Jun 30, 2026 |
| Michelle Knopf | EVP and COO | 30,131 | 1.00% | Jun 30, 2026 |
| Ann M. Werth | Director | 8,501 | 0.28% | Jun 16, 2026 |
| Amy Zientara | Director | 27,110 | 0.90% | Jun 16, 2026 |
| Thomas L. Grimm | Director | 28,678 | 0.95% | Jun 16, 2026 |
| Timothy R. Wimmer | Director | 20,246 | 0.67% | Jun 16, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Nora Spatz EVP and CAO | Sep 18, 2026 | Option exercise | +1,201 | $8.13 | $9.76K | 28,297 |
| Nora Spatz EVP and CAO | Sep 18, 2026 | Option exercise | +962 | $6.48 | $6.23K | 29,259 |
| Michelle Knopf EVP and COO | Jun 28, 2026 | Tax withholding | −225 | $15.49 | $3.49K | 8,557 |
| Joy Selting-Buchberger SVP and CFO | Jun 28, 2026 | Tax withholding | −522 | $15.49 | $8.09K | 4,760 |
| Nicholas W. Zillges President and CEO, Director | Jun 28, 2026 | Tax withholding | −1,269 | $15.49 | $19.66K | 55,936 |
| Nora Spatz EVP and CAO | Jun 28, 2026 | Tax withholding | −503 | $15.49 | $7.79K | 27,096 |
| Terry Cornish SVP and CCO | Jun 28, 2026 | Tax withholding | −247 | $15.49 | $3.83K | 6,256 |
| Nicholas W. Zillges President and CEO, Director | Jun 16, 2026 | Buy | +970 | $15.00 | $14.55K | 57,205 |
| Nicholas W. Zillges President and CEO, Director | Jun 15, 2026 | Award | +16,934 | – | – | 56,235 |
| Ann M. Werth Director | Jun 15, 2026 | Award | +3,386 | – | – | 8,501 |
| Michelle Knopf EVP and COO | Jun 15, 2026 | Award | +5,450 | – | – | 8,782 |
| Thomas L. Grimm Director | Jun 15, 2026 | Award | +3,386 | – | – | 6,384 |
| Terry Cornish SVP and CCO | Jun 15, 2026 | Award | +3,500 | – | – | 6,503 |
| Nora Spatz EVP and CAO | Jun 15, 2026 | Award | +6,450 | – | – | 27,599 |
| Amy Zientara Director | Jun 15, 2026 | Award | +3,386 | – | – | 27,110 |
| Timothy R. Wimmer Director | Jun 15, 2026 | Award | +3,386 | – | – | 6,384 |
| Nora Spatz EVP and CAO | Jun 10, 2026 | Buy | +602 | $14.75 | $8.88K | 39,520 |
| Terry Cornish SVP and CCO | Jun 10, 2026 | Buy | +219 | $14.75 | $3.23K | 27,205 |
| Nicholas W. Zillges President and CEO, Director | Jun 10, 2026 | Buy | +170 | $14.75 | $2.51K | 51,160 |
| Michelle Knopf EVP and COO | Jun 10, 2026 | Buy | +164 | $14.75 | $2.42K | 19,339 |
| Nora Spatz EVP and CAO | Jun 9, 2026 | Buy | +1,904 | $14.50 | $27.61K | 38,918 |
| Terry Cornish SVP and CCO | Jun 9, 2026 | Buy | +693 | $14.50 | $10.05K | 26,986 |
| Nicholas W. Zillges President and CEO, Director | Jun 9, 2026 | Buy | +537 | $14.50 | $7.79K | 50,990 |
| Michelle Knopf EVP and COO | Jun 9, 2026 | Buy | +519 | $14.50 | $7.53K | 19,175 |
| Nora Spatz EVP and CAO | Jun 8, 2026 | Buy | +197 | $14.24 | $2.81K | 37,014 |
| Terry Cornish SVP and CCO | Jun 8, 2026 | Buy | +71 | $14.24 | $1.01K | 26,293 |
| Nicholas W. Zillges President and CEO, Director | Jun 8, 2026 | Buy | +55 | $14.24 | $783 | 50,453 |
| Michelle Knopf EVP and COO | Jun 8, 2026 | Buy | +54 | $14.24 | $769 | 18,656 |
| Nora Spatz EVP and CAO | Jun 5, 2026 | Buy | +320 | $14.25 | $4.56K | 36,817 |
| Terry Cornish SVP and CCO | Jun 5, 2026 | Buy | +116 | $14.25 | $1.65K | 26,222 |
| Nicholas W. Zillges President and CEO, Director | Jun 5, 2026 | Buy | +90 | $14.25 | $1.28K | 50,398 |
| Michelle Knopf EVP and COO | Jun 5, 2026 | Buy | +87 | $14.25 | $1.24K | 18,602 |
| Nora Spatz EVP and CAO | Jun 4, 2026 | Buy | +74 | $13.77 | $1.02K | 34,497 |
| Terry Cornish SVP and CCO | Jun 4, 2026 | Buy | +27 | $13.77 | $372 | 26,106 |
| Nicholas W. Zillges President and CEO, Director | Jun 4, 2026 | Buy | +21 | $13.77 | $289 | 50,308 |
| Michelle Knopf EVP and COO | Jun 4, 2026 | Buy | +20 | $13.77 | $275 | 18,515 |
| Nora Spatz EVP and CAO | Jun 3, 2026 | Buy | +722 | $13.75 | $9.93K | 36,423 |
| Terry Cornish SVP and CCO | Jun 3, 2026 | Buy | +263 | $13.75 | $3.62K | 26,079 |
| Nicholas W. Zillges President and CEO, Director | Jun 3, 2026 | Buy | +203 | $13.75 | $2.79K | 50,287 |
| Michelle Knopf EVP and COO | Jun 3, 2026 | Buy | +197 | $13.75 | $2.71K | 18,495 |
| Nicholas W. Zillges President and CEO, Director | Jun 3, 2026 | Option exercise | +1,500 | $6.48 | $9.72K | 39,301 |
| Timothy R. Wimmer Director | Jun 3, 2026 | Option exercise | +899 | $6.48 | $5.83K | 13,862 |
| Timothy R. Wimmer Director | Jun 3, 2026 | Option exercise | +3,599 | $8.13 | $29.26K | 12,963 |
| Thomas L. Grimm Director | Jun 3, 2026 | Option exercise | +300 | $6.48 | $1.94K | 22,294 |
| Nora Spatz EVP and CAO | Jun 3, 2026 | Option exercise | +1,200 | $8.13 | $9.76K | 21,149 |
| Amy Zientara Director | Jun 3, 2026 | Option exercise | +3,599 | $8.13 | $29.26K | 22,825 |
| Amy Zientara Director | Jun 3, 2026 | Option exercise | +899 | $6.48 | $5.83K | 23,724 |
| Terry Cornish SVP and CCO | May 16, 2026 | Tax withholding | −41 | $14.50 | $595 | 3,003 |
| Nora Spatz EVP and CAO | May 16, 2026 | Tax withholding | −30 | $14.50 | $435 | 19,949 |
| Joy Selting-Buchberger SVP and CFO | May 16, 2026 | Tax withholding | −56 | $14.50 | $812 | 5,282 |
| Michelle Knopf EVP and COO | May 16, 2026 | Tax withholding | −86 | $14.50 | $1.25K | 3,332 |
| Ann M. Werth Director | May 5, 2026 | Option exercise | +899 | $8.13 | $7.31K | 4,516 |
| Ann M. Werth Director | May 5, 2026 | Option exercise | +599 | $6.48 | $3.88K | 5,115 |
| Thomas L. Grimm Director | Mar 20, 2026 | Option exercise | +599 | $6.48 | $3.88K | 21,994 |
| Thomas L. Grimm Director | Mar 20, 2026 | Option exercise | +3,599 | $8.13 | $29.26K | 21,395 |
| Nora Spatz EVP and CAO | Mar 18, 2026 | Option exercise | +1,921 | $6.48 | $12.45K | 19,979 |
| Nora Spatz EVP and CAO | Mar 18, 2026 | Option exercise | +2,399 | $8.13 | $19.50K | 18,058 |
| Nicholas W. Zillges President and CEO, Director | Feb 23, 2026 | Option exercise | +2,998 | $6.48 | $19.43K | 37,801 |
| Nicholas W. Zillges President and CEO, Director | Dec 2, 2025 | Discretionary | +24 | $11.30 | $271 | 50,084 |
| Nicholas W. Zillges President and CEO, Director | Dec 2, 2025 | Discretionary | +634 | $11.11 | $7.04K | 50,060 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.